.app {
  text-align: left;
  display: flex;
  height: 100%;
  /* display: flex; */
}

.menu {
  flex-shrink: 0;
  font-size: 12px;
  max-height: 100%;
  overflow: auto;
  /* width: 120px;
  flex-grow: 0;
  overflow: auto; */
}

.app .menu ul {
  list-style: none;
  padding: 10px;
  margin: 0;
  white-space: nowrap;
  cursor: pointer;
}

.app .menu ul h2 {
  color: black;
  font-size: 16px;
}

.app .menu ul li.active {
  color: red;
}

.main {
  /* flex: 1; */
  position: relative;
  flex-grow: 1;
}

.main,
.menu {
  padding: 10px 20px;
}
